SECTION XII. 269 



Genus 3. Tmncati or flat-fided Cockles. 

 Thefe are fuch Cockles as are truncated, or 

 have one fide flat, and, as it were, cut ofF. 

 Thefe fpecies rank in moft authors with the 

 Cockles in general; and Davila only, to my 

 knowledge, has made a particular or dif- 

 tin<a genus of them : it is his third genus 

 of Hearts, which he calls Cames Tronquees 

 6\x Conques de Venus. This genus is not 

 very numerous. 



Family 9, is the Tellinae or.Tellens; 

 Shells more broad than long, rather flat, 

 and the hinge has two teeth fet clofe to- 

 gether. PI. VI. fig. 11, and 11. b. 



This family may be divided into two ge- 

 nera, viz. 



Genus i. Tellinas ; Shells with fimilar 

 fides, whofe beak and hinge are central, 

 PI. VI. /.I I. 



